**EC3251**

**CIRCUIT ANALYSIS**

**COURSE OBJECTIVES:**

i. To learn the basic
concepts and behaviour of DC and AC circuits.

ii. To understand
various methods of circuit/ network analysis using network theorems.

iii. To understand the
transient and steady state response of the circuits subjected to DC excitations
and AC with sinusoidal excitations.

iv. To learn the
concept of coupling in circuits and topologies.

**UNIT I**

**DC CIRCUIT ANALYSIS**

Basic Components of
electric Circuits, Charge, current, Voltage and Power, Voltage and Current
Sources, Ohms Law, Kirchoff‘s Current Law, Kirchoff‘s voltage law, The single
Node – Pair Circuit, series and Parallel Connected Independent Sources,
Resistors in Series and Parallel, voltage and current division, Nodal analysis,
Mesh analysis.

**UNIT II**

**NETWORK THEOREM AND DUALITY**

Useful Circuit Analysis
techniques - Linearity and superposition, Thevenin and Norton Equivalent
Circuits, Maximum Power Transfer, Delta-Wye Conversion. Duals, Dual circuits.
Analysis using dependent current sources and voltage sources

**UNIT III**

**SINUSOIDAL STEADY STATE ANALYSIS**

Sinusoidal Steady –
State analysis , Characteristics of Sinusoids, The Complex Forcing Function,
The Phasor, Phasor relationship for R, L, and C, impedance and Admittance,
Nodal and Mesh Analysis, Phasor Diagrams, AC Circuit Power Analysis,
Instantaneous Power, Average Power, apparent Power and Power Factor, Complex
Power.

**UNIT IV**

**TRANSIENTS AND RESONANCE IN RLC CIRCUITS**

Basic RL and RC
Circuits, The Source- Free RL Circuit, The Source-Free RC Circuit, The
Unit-Step Function, Driven RL Circuits, Driven RC Circuits, RLC Circuits,
Frequency Response, Parallel Resonance, Series Resonance, Quality Factor.

**UNIT V**

**COUPLED CIRCUITS AND TOPOLOGY**

Magnetically Coupled
Circuits, mutual Inductance, the Linear Transformer, the Ideal Transformer, An
introduction to Network Topology, Trees and General Nodal analysis, Links and
Loop analysis.

**SUGGESTED
ACTIVITIES:**

Practice solving
variety of problems

**COURSE OUTCOMES**

On successful
completion of this course, the student will be able to

**CO1:**
Apply the basic concepts of circuit analysis such as Kirchoff’s laws, mesh
current and node voltage method for analysis of DC and AC circuits.

**CO2:**
Apply suitable network theorems and analyze AC and DC circuits

**CO3:**
Analyze steady state response of any R, L and C circuits

**CO4:**
Analyze the transient response for any RC, RL and RLC circuits and frequency
response of parallel and series resonance circuits.

**CO5:**
Analyze the coupled circuits and network topologies

**TOTAL:
60 PERIODS**

**TEXT BOOKS:**

i. Hayt Jack Kemmerly,
Steven Durbin, "Engineering Circuit Analysis",Mc Graw Hill education,
9th Edition, 2018.

ii. Charles K.
Alexander & Mathew N.O.Sadiku, "Fundamentals of Electric
Circuits", Mc Graw- Hill, 2nd Edition, 2003.

iii. Joseph Edminister
and Mahmood Nahvi, ―Electric Circuits, Schaum‘s Outline Series, Tata McGraw
Hill Publishing Company, New Delhi, Fifth Edition Reprint 2016.

**REFERENCES:**

i. Robert.L.
Boylestead, "Introductory Circuit Analysis", Pearson Education India,
12th Edition, 2014. David Bell, "Fundamentals of Electric Circuits",
Oxford University press, 7thEdition, 2009.

ii. John O Mallay,
Schaum’s Outlines "Basic Circuit Analysis", The Mc Graw Hill
companies, 2nd Edition, 2011

iii. Allan H.Robbins,
Wilhelm C.Miller, “Circuit Analysis Theory and Practice", Cengage
Learning, Fifth Edition, 1st Indian Reprint 2013